./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix032_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 997cd7c3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix032_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a755329fae6b4ce46b99bedceffb99f8d845f2e1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-997cd7c-m [2021-09-22 14:42:16,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 14:42:16,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 14:42:16,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 14:42:16,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 14:42:16,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 14:42:16,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 14:42:16,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 14:42:16,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 14:42:16,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 14:42:16,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 14:42:16,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 14:42:16,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 14:42:16,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 14:42:16,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 14:42:16,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 14:42:16,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 14:42:16,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 14:42:16,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 14:42:16,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 14:42:16,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 14:42:16,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 14:42:16,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 14:42:16,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 14:42:16,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 14:42:16,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 14:42:16,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 14:42:16,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 14:42:16,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 14:42:16,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 14:42:16,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 14:42:16,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 14:42:16,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 14:42:16,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 14:42:16,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 14:42:16,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 14:42:16,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 14:42:16,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 14:42:16,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 14:42:16,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 14:42:16,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 14:42:16,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 14:42:16,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 14:42:16,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 14:42:16,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 14:42:16,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 14:42:16,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 14:42:16,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 14:42:16,897 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 14:42:16,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 14:42:16,898 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 14:42:16,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 14:42:16,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 14:42:16,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 14:42:16,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 14:42:16,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 14:42:16,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 14:42:16,899 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 14:42:16,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 14:42:16,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 14:42:16,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 14:42:16,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 14:42:16,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 14:42:16,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 14:42:16,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:42:16,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 14:42:16,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 14:42:16,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 14:42:16,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 14:42:16,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 14:42:16,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 14:42:16,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 14:42:16,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a755329fae6b4ce46b99bedceffb99f8d845f2e1 [2021-09-22 14:42:17,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 14:42:17,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 14:42:17,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 14:42:17,264 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 14:42:17,265 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 14:42:17,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix032_tso.opt.i [2021-09-22 14:42:17,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec01809e/78d416f3583b4809a522d8d109c50b3a/FLAGeea9bebc7 [2021-09-22 14:42:17,818 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 14:42:17,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix032_tso.opt.i [2021-09-22 14:42:17,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec01809e/78d416f3583b4809a522d8d109c50b3a/FLAGeea9bebc7 [2021-09-22 14:42:18,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ec01809e/78d416f3583b4809a522d8d109c50b3a [2021-09-22 14:42:18,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 14:42:18,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 14:42:18,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 14:42:18,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 14:42:18,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 14:42:18,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e3894a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18, skipping insertion in model container [2021-09-22 14:42:18,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 14:42:18,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 14:42:18,441 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix032_tso.opt.i[948,961] [2021-09-22 14:42:18,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:42:18,657 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 14:42:18,666 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix032_tso.opt.i[948,961] [2021-09-22 14:42:18,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 14:42:18,737 INFO L208 MainTranslator]: Completed translation [2021-09-22 14:42:18,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18 WrapperNode [2021-09-22 14:42:18,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 14:42:18,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 14:42:18,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 14:42:18,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 14:42:18,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 14:42:18,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 14:42:18,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 14:42:18,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 14:42:18,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 14:42:18,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 14:42:18,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 14:42:18,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 14:42:18,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (1/1) ... [2021-09-22 14:42:18,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 14:42:18,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 14:42:18,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-09-22 14:42:18,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-09-22 14:42:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 14:42:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-09-22 14:42:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 14:42:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 14:42:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-09-22 14:42:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-09-22 14:42:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-09-22 14:42:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-09-22 14:42:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-09-22 14:42:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-09-22 14:42:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 14:42:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-09-22 14:42:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 14:42:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 14:42:18,933 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-09-22 14:42:20,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 14:42:20,389 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-09-22 14:42:20,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:20 BoogieIcfgContainer [2021-09-22 14:42:20,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 14:42:20,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 14:42:20,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 14:42:20,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 14:42:20,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:42:18" (1/3) ... [2021-09-22 14:42:20,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c545b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:42:20, skipping insertion in model container [2021-09-22 14:42:20,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:42:18" (2/3) ... [2021-09-22 14:42:20,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c545b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:42:20, skipping insertion in model container [2021-09-22 14:42:20,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:20" (3/3) ... [2021-09-22 14:42:20,410 INFO L111 eAbstractionObserver]: Analyzing ICFG mix032_tso.opt.i [2021-09-22 14:42:20,414 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 14:42:20,415 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 14:42:20,415 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-09-22 14:42:20,415 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 14:42:20,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,445 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,446 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,446 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,447 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,447 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,447 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,447 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,448 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,450 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,451 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,457 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,457 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,459 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,460 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,461 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,461 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,461 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,461 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,461 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,461 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,463 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,464 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,464 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,464 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,464 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,467 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,467 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,471 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,472 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,475 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 14:42:20,477 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-09-22 14:42:20,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 14:42:20,514 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-09-22 14:42:20,514 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-09-22 14:42:20,526 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 14:42:20,533 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 114 transitions, 243 flow [2021-09-22 14:42:20,535 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 114 transitions, 243 flow [2021-09-22 14:42:20,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 114 transitions, 243 flow [2021-09-22 14:42:20,582 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-09-22 14:42:20,583 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-09-22 14:42:20,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-09-22 14:42:20,588 INFO L116 LiptonReduction]: Number of co-enabled transitions 2000 [2021-09-22 14:42:24,538 INFO L131 LiptonReduction]: Checked pairs total: 4556 [2021-09-22 14:42:24,539 INFO L133 LiptonReduction]: Total number of compositions: 99 [2021-09-22 14:42:24,553 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 28 transitions, 71 flow [2021-09-22 14:42:24,597 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 790 states, 787 states have (on average 3.335451080050826) internal successors, (2625), 789 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 790 states, 787 states have (on average 3.335451080050826) internal successors, (2625), 789 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-09-22 14:42:24,606 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:24,606 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:24,607 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:24,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:24,612 INFO L82 PathProgramCache]: Analyzing trace with hash -808774405, now seen corresponding path program 1 times [2021-09-22 14:42:24,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:24,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730856360] [2021-09-22 14:42:24,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:24,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:24,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:24,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730856360] [2021-09-22 14:42:24,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730856360] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:24,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:24,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 14:42:24,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443404249] [2021-09-22 14:42:24,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:42:24,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:24,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:42:24,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:24,881 INFO L87 Difference]: Start difference. First operand has 790 states, 787 states have (on average 3.335451080050826) internal successors, (2625), 789 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:24,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:24,941 INFO L93 Difference]: Finished difference Result 670 states and 2079 transitions. [2021-09-22 14:42:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:42:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-09-22 14:42:24,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:24,959 INFO L225 Difference]: With dead ends: 670 [2021-09-22 14:42:24,960 INFO L226 Difference]: Without dead ends: 650 [2021-09-22 14:42:24,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:24,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2021-09-22 14:42:25,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2021-09-22 14:42:25,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 3.1248073959938365) internal successors, (2028), 649 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2028 transitions. [2021-09-22 14:42:25,035 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2028 transitions. Word has length 7 [2021-09-22 14:42:25,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:25,036 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 2028 transitions. [2021-09-22 14:42:25,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,036 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2028 transitions. [2021-09-22 14:42:25,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-09-22 14:42:25,038 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:25,038 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:25,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 14:42:25,039 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:25,039 INFO L82 PathProgramCache]: Analyzing trace with hash 570652931, now seen corresponding path program 1 times [2021-09-22 14:42:25,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:25,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122148375] [2021-09-22 14:42:25,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:25,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:25,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:25,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:25,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122148375] [2021-09-22 14:42:25,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122148375] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:25,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:25,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:42:25,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096452525] [2021-09-22 14:42:25,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:25,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:25,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:25,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:25,163 INFO L87 Difference]: Start difference. First operand 650 states and 2028 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:25,212 INFO L93 Difference]: Finished difference Result 754 states and 2258 transitions. [2021-09-22 14:42:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:25,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-09-22 14:42:25,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:25,219 INFO L225 Difference]: With dead ends: 754 [2021-09-22 14:42:25,219 INFO L226 Difference]: Without dead ends: 634 [2021-09-22 14:42:25,220 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:25,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2021-09-22 14:42:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2021-09-22 14:42:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 633 states have (on average 3.102685624012638) internal successors, (1964), 633 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1964 transitions. [2021-09-22 14:42:25,261 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1964 transitions. Word has length 10 [2021-09-22 14:42:25,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:25,261 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1964 transitions. [2021-09-22 14:42:25,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1964 transitions. [2021-09-22 14:42:25,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-09-22 14:42:25,270 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:25,270 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:25,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 14:42:25,271 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:25,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:25,271 INFO L82 PathProgramCache]: Analyzing trace with hash -2096298092, now seen corresponding path program 1 times [2021-09-22 14:42:25,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:25,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45700360] [2021-09-22 14:42:25,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:25,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:25,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:25,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45700360] [2021-09-22 14:42:25,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45700360] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:25,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:25,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:42:25,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023041193] [2021-09-22 14:42:25,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:25,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:25,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:25,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:25,396 INFO L87 Difference]: Start difference. First operand 634 states and 1964 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:25,416 INFO L93 Difference]: Finished difference Result 654 states and 1954 transitions. [2021-09-22 14:42:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:25,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-09-22 14:42:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:25,420 INFO L225 Difference]: With dead ends: 654 [2021-09-22 14:42:25,421 INFO L226 Difference]: Without dead ends: 554 [2021-09-22 14:42:25,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:25,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-09-22 14:42:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2021-09-22 14:42:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 3.0452079566003616) internal successors, (1684), 553 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1684 transitions. [2021-09-22 14:42:25,439 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1684 transitions. Word has length 12 [2021-09-22 14:42:25,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:25,440 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 1684 transitions. [2021-09-22 14:42:25,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,440 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1684 transitions. [2021-09-22 14:42:25,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-09-22 14:42:25,442 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:25,442 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:25,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 14:42:25,442 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:25,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:25,444 INFO L82 PathProgramCache]: Analyzing trace with hash 176854896, now seen corresponding path program 1 times [2021-09-22 14:42:25,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:25,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283075778] [2021-09-22 14:42:25,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:25,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:25,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:25,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283075778] [2021-09-22 14:42:25,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283075778] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:25,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:25,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:42:25,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658411591] [2021-09-22 14:42:25,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:25,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:25,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:25,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:25,571 INFO L87 Difference]: Start difference. First operand 554 states and 1684 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:25,610 INFO L93 Difference]: Finished difference Result 578 states and 1706 transitions. [2021-09-22 14:42:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-09-22 14:42:25,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:25,615 INFO L225 Difference]: With dead ends: 578 [2021-09-22 14:42:25,615 INFO L226 Difference]: Without dead ends: 506 [2021-09-22 14:42:25,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.2ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:42:25,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-09-22 14:42:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-09-22 14:42:25,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 3.00990099009901) internal successors, (1520), 505 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 1520 transitions. [2021-09-22 14:42:25,633 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 1520 transitions. Word has length 12 [2021-09-22 14:42:25,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:25,635 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 1520 transitions. [2021-09-22 14:42:25,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 1520 transitions. [2021-09-22 14:42:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-09-22 14:42:25,637 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:25,638 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:25,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-09-22 14:42:25,638 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:25,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:25,640 INFO L82 PathProgramCache]: Analyzing trace with hash 2116044784, now seen corresponding path program 1 times [2021-09-22 14:42:25,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:25,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715347833] [2021-09-22 14:42:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:25,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:25,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:25,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715347833] [2021-09-22 14:42:25,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715347833] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:25,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:25,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-09-22 14:42:25,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84470835] [2021-09-22 14:42:25,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 14:42:25,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 14:42:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:25,725 INFO L87 Difference]: Start difference. First operand 506 states and 1520 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:25,734 INFO L93 Difference]: Finished difference Result 350 states and 896 transitions. [2021-09-22 14:42:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 14:42:25,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-09-22 14:42:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:25,737 INFO L225 Difference]: With dead ends: 350 [2021-09-22 14:42:25,737 INFO L226 Difference]: Without dead ends: 350 [2021-09-22 14:42:25,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 14:42:25,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-09-22 14:42:25,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2021-09-22 14:42:25,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 2.567335243553009) internal successors, (896), 349 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 896 transitions. [2021-09-22 14:42:25,746 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 896 transitions. Word has length 14 [2021-09-22 14:42:25,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:25,746 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 896 transitions. [2021-09-22 14:42:25,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,747 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 896 transitions. [2021-09-22 14:42:25,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-09-22 14:42:25,747 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:25,748 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:25,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-09-22 14:42:25,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:25,749 INFO L82 PathProgramCache]: Analyzing trace with hash -465090756, now seen corresponding path program 1 times [2021-09-22 14:42:25,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:25,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203946863] [2021-09-22 14:42:25,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:25,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:25,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:25,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203946863] [2021-09-22 14:42:25,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203946863] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:25,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:25,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-09-22 14:42:25,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618145775] [2021-09-22 14:42:25,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-09-22 14:42:25,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:25,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-09-22 14:42:25,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:25,882 INFO L87 Difference]: Start difference. First operand 350 states and 896 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:25,903 INFO L93 Difference]: Finished difference Result 214 states and 488 transitions. [2021-09-22 14:42:25,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 14:42:25,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-09-22 14:42:25,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:25,905 INFO L225 Difference]: With dead ends: 214 [2021-09-22 14:42:25,905 INFO L226 Difference]: Without dead ends: 214 [2021-09-22 14:42:25,905 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-09-22 14:42:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-09-22 14:42:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-09-22 14:42:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 2.291079812206573) internal successors, (488), 213 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 488 transitions. [2021-09-22 14:42:25,910 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 488 transitions. Word has length 16 [2021-09-22 14:42:25,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:25,911 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 488 transitions. [2021-09-22 14:42:25,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:25,911 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 488 transitions. [2021-09-22 14:42:25,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-09-22 14:42:25,912 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:25,912 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:25,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-09-22 14:42:25,913 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:25,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:25,913 INFO L82 PathProgramCache]: Analyzing trace with hash -594891845, now seen corresponding path program 1 times [2021-09-22 14:42:25,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:25,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000234755] [2021-09-22 14:42:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:25,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:25,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:25,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000234755] [2021-09-22 14:42:25,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000234755] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:25,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:25,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:42:25,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563270192] [2021-09-22 14:42:25,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:25,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:25,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:25,998 INFO L87 Difference]: Start difference. First operand 214 states and 488 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:26,028 INFO L93 Difference]: Finished difference Result 309 states and 679 transitions. [2021-09-22 14:42:26,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:26,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-09-22 14:42:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:26,030 INFO L225 Difference]: With dead ends: 309 [2021-09-22 14:42:26,030 INFO L226 Difference]: Without dead ends: 218 [2021-09-22 14:42:26,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:42:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-09-22 14:42:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2021-09-22 14:42:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 2.131455399061033) internal successors, (454), 213 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 454 transitions. [2021-09-22 14:42:26,036 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 454 transitions. Word has length 19 [2021-09-22 14:42:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:26,037 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 454 transitions. [2021-09-22 14:42:26,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 454 transitions. [2021-09-22 14:42:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-09-22 14:42:26,038 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:26,039 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:26,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-09-22 14:42:26,039 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:26,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1557002941, now seen corresponding path program 2 times [2021-09-22 14:42:26,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:26,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453956604] [2021-09-22 14:42:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:26,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:26,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:26,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453956604] [2021-09-22 14:42:26,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453956604] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:26,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:26,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:42:26,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121014679] [2021-09-22 14:42:26,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:26,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:26,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:26,152 INFO L87 Difference]: Start difference. First operand 214 states and 454 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:26,171 INFO L93 Difference]: Finished difference Result 174 states and 376 transitions. [2021-09-22 14:42:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:26,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-09-22 14:42:26,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:26,173 INFO L225 Difference]: With dead ends: 174 [2021-09-22 14:42:26,173 INFO L226 Difference]: Without dead ends: 110 [2021-09-22 14:42:26,174 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-09-22 14:42:26,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-09-22 14:42:26,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 2.055045871559633) internal successors, (224), 109 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 224 transitions. [2021-09-22 14:42:26,177 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 224 transitions. Word has length 19 [2021-09-22 14:42:26,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:26,177 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 224 transitions. [2021-09-22 14:42:26,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,177 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 224 transitions. [2021-09-22 14:42:26,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-09-22 14:42:26,178 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:26,178 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:26,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-09-22 14:42:26,178 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:26,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1606402597, now seen corresponding path program 1 times [2021-09-22 14:42:26,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:26,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685950767] [2021-09-22 14:42:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:26,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:26,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:26,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685950767] [2021-09-22 14:42:26,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685950767] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:26,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:26,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 14:42:26,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817124771] [2021-09-22 14:42:26,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 14:42:26,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:26,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 14:42:26,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-09-22 14:42:26,258 INFO L87 Difference]: Start difference. First operand 110 states and 224 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:26,278 INFO L93 Difference]: Finished difference Result 146 states and 291 transitions. [2021-09-22 14:42:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-09-22 14:42:26,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-09-22 14:42:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:26,279 INFO L225 Difference]: With dead ends: 146 [2021-09-22 14:42:26,280 INFO L226 Difference]: Without dead ends: 49 [2021-09-22 14:42:26,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-09-22 14:42:26,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-09-22 14:42:26,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-09-22 14:42:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.7083333333333333) internal successors, (82), 48 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 82 transitions. [2021-09-22 14:42:26,282 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 82 transitions. Word has length 22 [2021-09-22 14:42:26,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:26,282 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 82 transitions. [2021-09-22 14:42:26,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,282 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 82 transitions. [2021-09-22 14:42:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-09-22 14:42:26,283 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:26,283 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:26,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-09-22 14:42:26,284 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:26,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1219607359, now seen corresponding path program 2 times [2021-09-22 14:42:26,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:26,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803601992] [2021-09-22 14:42:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:26,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 14:42:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 14:42:26,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 14:42:26,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803601992] [2021-09-22 14:42:26,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803601992] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 14:42:26,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 14:42:26,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-09-22 14:42:26,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177256522] [2021-09-22 14:42:26,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-09-22 14:42:26,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 14:42:26,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-09-22 14:42:26,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-09-22 14:42:26,432 INFO L87 Difference]: Start difference. First operand 49 states and 82 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 14:42:26,522 INFO L93 Difference]: Finished difference Result 60 states and 97 transitions. [2021-09-22 14:42:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-09-22 14:42:26,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-09-22 14:42:26,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 14:42:26,523 INFO L225 Difference]: With dead ends: 60 [2021-09-22 14:42:26,523 INFO L226 Difference]: Without dead ends: 33 [2021-09-22 14:42:26,524 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 67.7ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-09-22 14:42:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-09-22 14:42:26,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-09-22 14:42:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2021-09-22 14:42:26,525 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 22 [2021-09-22 14:42:26,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 14:42:26,525 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-09-22 14:42:26,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-09-22 14:42:26,525 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2021-09-22 14:42:26,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-09-22 14:42:26,526 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 14:42:26,526 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 14:42:26,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-09-22 14:42:26,526 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-09-22 14:42:26,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 14:42:26,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1341856025, now seen corresponding path program 3 times [2021-09-22 14:42:26,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 14:42:26,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030277288] [2021-09-22 14:42:26,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 14:42:26,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 14:42:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:42:26,573 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-22 14:42:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 14:42:26,666 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-09-22 14:42:26,666 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-09-22 14:42:26,667 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:26,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:26,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 14:42:26,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-09-22 14:42:26,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-09-22 14:42:26,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 14:42:26,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-09-22 14:42:26,675 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 14:42:26,675 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 14:42:26,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 02:42:26 BasicIcfg [2021-09-22 14:42:26,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 14:42:26,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 14:42:26,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 14:42:26,784 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 14:42:26,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:42:20" (3/4) ... [2021-09-22 14:42:26,786 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-09-22 14:42:26,884 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 14:42:26,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 14:42:26,885 INFO L168 Benchmark]: Toolchain (without parser) took 8702.94 ms. Allocated memory was 50.3 MB in the beginning and 132.1 MB in the end (delta: 81.8 MB). Free memory was 26.2 MB in the beginning and 41.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 65.8 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:26,886 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.4 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 14:42:26,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.84 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.1 MB in the beginning and 31.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:26,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 60.8 MB. Free memory was 31.7 MB in the beginning and 29.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:26,887 INFO L168 Benchmark]: Boogie Preprocessor took 71.69 ms. Allocated memory is still 60.8 MB. Free memory was 29.2 MB in the beginning and 43.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:26,887 INFO L168 Benchmark]: RCFGBuilder took 1527.84 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 42.6 MB in the beginning and 29.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:26,887 INFO L168 Benchmark]: TraceAbstraction took 6378.20 ms. Allocated memory was 73.4 MB in the beginning and 132.1 MB in the end (delta: 58.7 MB). Free memory was 51.3 MB in the beginning and 59.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 49.7 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:26,887 INFO L168 Benchmark]: Witness Printer took 100.40 ms. Allocated memory is still 132.1 MB. Free memory was 59.6 MB in the beginning and 41.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-09-22 14:42:26,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.4 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 553.84 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.1 MB in the beginning and 31.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 60.8 MB. Free memory was 31.7 MB in the beginning and 29.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.69 ms. Allocated memory is still 60.8 MB. Free memory was 29.2 MB in the beginning and 43.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1527.84 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 42.6 MB in the beginning and 29.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6378.20 ms. Allocated memory was 73.4 MB in the beginning and 132.1 MB in the end (delta: 58.7 MB). Free memory was 51.3 MB in the beginning and 59.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 49.7 MB. Max. memory is 16.1 GB. * Witness Printer took 100.40 ms. Allocated memory is still 132.1 MB. Free memory was 59.6 MB in the beginning and 41.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4003.5ms, 122 PlacesBefore, 37 PlacesAfterwards, 114 TransitionsBefore, 28 TransitionsAfterwards, 2000 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 99 TotalNumberOfCompositions, 4556 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2724, positive: 2581, positive conditional: 0, positive unconditional: 2581, negative: 143, negative conditional: 0, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1452, positive: 1415, positive conditional: 0, positive unconditional: 1415, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1452, positive: 1392, positive conditional: 0, positive unconditional: 1392, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 256, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 194, negative conditional: 0, negative unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2724, positive: 1166, positive conditional: 0, positive unconditional: 1166, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 1452, unknown conditional: 0, unknown unconditional: 1452] , Statistics on independence cache: Total cache size (in pairs): 187, Positive cache size: 169, Positive conditional cache size: 0, Positive unconditional cache size: 169, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L717] 0 int __unbuffered_p2_EAX = 0; [L719] 0 int __unbuffered_p2_EBX = 0; [L721] 0 int a = 0; [L723] 0 int b = 0; [L724] 0 _Bool main$tmp_guard0; [L725] 0 _Bool main$tmp_guard1; [L727] 0 int x = 0; [L729] 0 int y = 0; [L731] 0 int z = 0; [L732] 0 _Bool z$flush_delayed; [L733] 0 int z$mem_tmp; [L734] 0 _Bool z$r_buff0_thd0; [L735] 0 _Bool z$r_buff0_thd1; [L736] 0 _Bool z$r_buff0_thd2; [L737] 0 _Bool z$r_buff0_thd3; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$read_delayed; [L743] 0 int *z$read_delayed_var; [L744] 0 int z$w_buff0; [L745] 0 _Bool z$w_buff0_used; [L746] 0 int z$w_buff1; [L747] 0 _Bool z$w_buff1_used; [L748] 0 _Bool weak$$choice0; [L749] 0 _Bool weak$$choice2; [L845] 0 pthread_t t870; [L846] FCALL, FORK 0 pthread_create(&t870, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] 0 pthread_t t871; [L848] FCALL, FORK 0 pthread_create(&t871, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L849] 0 pthread_t t872; [L850] FCALL, FORK 0 pthread_create(&t872, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 3 z$w_buff1 = z$w_buff0 [L803] 3 z$w_buff0 = 1 [L804] 3 z$w_buff1_used = z$w_buff0_used [L805] 3 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L807] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L808] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L809] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L810] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L811] 3 z$r_buff0_thd3 = (_Bool)1 [L814] 3 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L817] 3 __unbuffered_p2_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L820] 3 __unbuffered_p2_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L768] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L771] 2 y = 1 [L774] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L777] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L778] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L779] 2 z$flush_delayed = weak$$choice2 [L780] 2 z$mem_tmp = z [L781] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L781] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L782] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L782] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0) [L782] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L782] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L783] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L783] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1) [L783] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L783] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L784] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L784] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used) [L784] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L784] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L785] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L785] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L786] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2) [L786] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L786] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L787] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L787] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L787] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L787] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L788] 2 __unbuffered_p1_EBX = z [L789] EXPR 2 z$flush_delayed ? z$mem_tmp : z [L789] 2 z = z$flush_delayed ? z$mem_tmp : z [L790] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L823] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L824] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L824] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L825] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L825] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L826] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L826] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L827] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L827] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L830] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L832] 3 return 0; [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L852] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L856] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L856] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L856] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L856] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L857] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L858] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L858] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L859] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L860] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L863] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 850]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 143 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 6165.1ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 25.6ms, AutomataDifference: 430.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4082.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 282 SDtfs, 235 SDslu, 445 SDs, 0 SdLazy, 127 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 136.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 158.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=790occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 165.5ms AutomataMinimizationTime, 10 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.7ms SsaConstructionTime, 418.8ms SatisfiabilityAnalysisTime, 656.3ms InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-09-22 14:42:26,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...